Commit | Line | Data |
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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
40e03b68 KM |
2 | /* syscall.h */ |
3 | ||
4 | #ifndef _ASM_PARISC_SYSCALL_H_ | |
5 | #define _ASM_PARISC_SYSCALL_H_ | |
6 | ||
ce5d1128 EP |
7 | #include <uapi/linux/audit.h> |
8 | #include <linux/compat.h> | |
40e03b68 KM |
9 | #include <linux/err.h> |
10 | #include <asm/ptrace.h> | |
11 | ||
fc79168a HD |
12 | #define NR_syscalls (__NR_Linux_syscalls) |
13 | ||
40e03b68 KM |
14 | static inline long syscall_get_nr(struct task_struct *tsk, |
15 | struct pt_regs *regs) | |
16 | { | |
17 | return regs->gr[20]; | |
18 | } | |
19 | ||
20 | static inline void syscall_get_arguments(struct task_struct *tsk, | |
21 | struct pt_regs *regs, unsigned int i, | |
22 | unsigned int n, unsigned long *args) | |
23 | { | |
24 | BUG_ON(i); | |
25 | ||
26 | switch (n) { | |
27 | case 6: | |
28 | args[5] = regs->gr[21]; | |
29 | case 5: | |
30 | args[4] = regs->gr[22]; | |
31 | case 4: | |
32 | args[3] = regs->gr[23]; | |
33 | case 3: | |
34 | args[2] = regs->gr[24]; | |
35 | case 2: | |
36 | args[1] = regs->gr[25]; | |
37 | case 1: | |
38 | args[0] = regs->gr[26]; | |
fc79168a | 39 | case 0: |
40e03b68 KM |
40 | break; |
41 | default: | |
42 | BUG(); | |
43 | } | |
44 | } | |
45 | ||
fc79168a HD |
46 | static inline long syscall_get_return_value(struct task_struct *task, |
47 | struct pt_regs *regs) | |
48 | { | |
49 | return regs->gr[28]; | |
50 | } | |
51 | ||
910cd32e HD |
52 | static inline void syscall_set_return_value(struct task_struct *task, |
53 | struct pt_regs *regs, | |
54 | int error, long val) | |
55 | { | |
56 | regs->gr[28] = error ? error : val; | |
57 | } | |
58 | ||
59 | static inline void syscall_rollback(struct task_struct *task, | |
60 | struct pt_regs *regs) | |
61 | { | |
62 | /* do nothing */ | |
63 | } | |
64 | ||
ce5d1128 EP |
65 | static inline int syscall_get_arch(void) |
66 | { | |
67 | int arch = AUDIT_ARCH_PARISC; | |
68 | #ifdef CONFIG_64BIT | |
69 | if (!is_compat_task()) | |
70 | arch = AUDIT_ARCH_PARISC64; | |
71 | #endif | |
72 | return arch; | |
73 | } | |
40e03b68 | 74 | #endif /*_ASM_PARISC_SYSCALL_H_*/ |